Fort Littleton is an unincorporated community in Dublin Township in Fulton County, Pennsylvania, United States. Fort Littleton is located at the junction of U.S. Route 522 and Plum Hollow Road, a short distance north of an interchange between US 522 and the Pennsylvania Turnpike, which is called the Fort Littleton interchange. The town was named for the 18th century Fort Lyttleton and was established near the fort's former location in 1767.